I recently ran a freeware registry cleaner program because my laptop was running slow even after defragmantation. After I did this, I started getting spoolsv.exe ("Oxffbadd11 referenced memory @ Oxffbadd11. The memory could not be read") and svchost.exe ("Ox7c911629 referenced memory @ Oxoo720065. Memory could not be written") application error messages and had to click OK to turn them off. The computer is now terribly slow, the internet will not connect and my DVD rom drive will not start up. CPU usage is at an acceptable level so I know that is not the problem for the lack of speed.
I'm slightly over novice level at this, but not much. Any step- by-steps for me?